Sweeping and scrubbing machine.



bro/853,525. PATENTED MAY 14., 1907. E. J. STEWART.

SWBEPING AND SGRUBBING MACHINE.

APPLICATION FILED JULYB. 1306.

2 SHEHTB SHEET 1.

' vwanfoz W cm 2/93 in use:

No! 53,525 vPA TENTE D MAY 14, 1567.

E J. STEWART.

SWEEPING AND. SORUBBING MACHINE. APPLICATION FILED JULYB, 1906.

I '2 SHEETSSHEET2.

Sum-for 2335 ha ease:

-'5 State of New ork, have invented certain ed 9; .guide frame in whichis movably 6 o :ro Willenable others skilled in'theert to which of theguide frame 5. By rotating these 65.

I ingsk and tad letters or figures o.

' r5 specification; I 11 takings-into grooves forn ed in two sides of 70"Elie-machineis-designed for theutilize tiori' dricel brush. 14, Asshown the diameter of 7 i visio'ri'ofmeensfor adjustin .t 'eo,entral suYunetionh'ith the vwheels 8 ermit the brush*= o s 1 p 9 Ifldrivengnjernbers '0 thezbru'sh toremei in' ma alwa .sibe maintained,Ye thebrush Orting"m UNrrED-fsTATEs PATENT OFFICE.- EM Mo-R "J. STEWART,OF new YORK, N. i. swsspme mosch uselhe' MACHINE. it

m. ezse,tzfs. Bpeeiflcetioh of Letters Patent. Patented' May 14, 1907.uc eon 115a my 6,1906. Boris-1N0. 824,987.

To all whom it may concern; infi efcrossiece 2 to which latter issecured Be it known that I, EMMOR J. STEWART, e a orizonte suyport 3,the upper ends of the citizen of .the United States, residing at levers1 being oined by e handle 4. 'On the New York cityboroughofMenhetten,-end lower ends and sides of each lever 1 is mountnew anduseful Im rovements in Sweeping mounted e bearing block 6 carrying itstub- 4 End Scrubbin Mac es; and I do hereby. shaft -7 on which ismounted a wheel 8. declare the fofio'win tobe e full, 'cleer,- e"ndThese bearing blocks are screw threaded to "exact deseript'iono? theinvention, sue as receive a/threaded bolt 9, swiveledin the top,

it epperteins to make and use the same, ref bolts by niee ns ofthe-squared end portions 4. erence-beinghed to theeecom'panym draw10,;-the blocks can be raised and lowered in re erence'i the guidefreme, the Hooks being prevented inar ed thereon, which form ,e part ofth s frorn turning with the bolt by means of ribs 4 Th'sinv'entionrelates to improvements in; the'bloc .swpe'ping, scrubbing end cleaningmeehines Above each guide frame on, the levers 1 and pertic'ulelrlytothe truqk: ill-WlilGh-fihfi v ere niounted-fixed bearings 12, to receiveencleaning device is mounted. mile 1301 whichis rigidly mounted acylinof electricity as a motive power-end essuch the brush 14; is suchas to preventit from powei is 's ipplied' from .e-Ifdied point,thetouching-the ground When the levers are; 'tl'uck'isedegted to beoperated-equally we ll held in e Yeitlfiflil: position but, when" thesei ppqsjte ireetions wltliout'the necessity lever'sere tilted in eitherdirection the brush of ,-ti1fningthesame. 4 will comenitofeontect withthe ground To .nfiventmn comprehends a rotery prevent the wholeweightofthetruck from 'brushmouiited ehove two centr-alsu porting comingdirectlyon thebrush and the truck wheels the lpzttterv being so mo'unted lnre'lefrom he tilted too fitr in either direction v r *tion' to thebrush'thetit mey-Lbe held above and there y interfere with the rotationof 3.0 the flbbrt; wheel'sbeing'elso I rovidedto supo the. brush, 1provide wheels 15. These 'ort -endydrjive' the truck w e'n the brush 15wheels are i,mounted 'on -each end'of the I fought; into N operativecontect'with the eross pieces 2 by means of ostubshefts 16 floor. 1which ere fixed in degendingends of the The-invention 'sllso conteln'let-es the pro .C1'0S S-P1'QO6S.\ These; eels ecting in eon or wear of te to effectively contact with the. ;surfece-- to be" Box-ting wheels toallow v I frush' efgnd which emits thedrivin'g; and scrubbed; ,,And thissame degree ofcbntitct} eletive "ositiox' 1'. wears off, y moving thewheels 8 by means v tiori' gurther embraesa novel of the adjustablebloeks,nearer theexis of theflg5 or storingltheelectljic conductor.brush. j "f1: -useespecielly advanteggous The 'rotetion of the brush is-efieeted he ehe'reetrherein de ed. thrdu'gh'the medium of anelectrieflniotor 1 9,

' truction and ermounted onthe support .3.- The armature arts-oh the.meshaft 1200f said motor'carries a sprocket m the deteileddewheel 21,which is connected bymans bfia; 'nneetioj i with the chain 22 toa,sprocket wheel 23 'on the axle 13- o fthebrushp-i I Figure 1 is'elevation A shelf 24,fixed to the levers YB H h1g2, e side wiew, and thesup' ort 3 cerries-a'controller box 2'5',*a,1 1d 10 it dete'. vertiqel,seoti'oni-of the reel, ,esuitahedoublepoleiswitch'fzfi, for reversing Iedeteil viewir ef eni'edijficegtioiif the direetion ofrqtjetion of theer-mature 'fifeme'eonsistigf twq main sup sheft 20'. On the handle 4 ismounted a'i eel; embers 1.';-1.- oons'tituti jlevers 27 whieh'carries eflexiblecond-uetkrr' coni- 55 or controlling'zthe truclg .ee'ch mem, rhev' .po'sed oftwo Wi es2'8;"28,suitebly insulated no the rin 30".

, of the chain 37 as shown in Fig. 4.

- as a? fulcrum-and when it is lowered the 'wheels on one side willserve as a fulcrum.

' brush andnmeans on each side thereof a a vers, a cylindrical; brushjourna ed therein,

wheels 0 :2 is in constant contact with the'ring 30 while shaft 35 xedon said lever. This gear wheel with sprocket wheels 38 fixed to the;hubs of from each other andwhich may be connected with an electricsocket (not shown) by means of a pin 29. Connection is established be:tween e conductor and the motor 1-9 through the switchand controller inthe fol.- lowing manner. 1 Metallic rings 30,. 30', Fig. 3 surround thehandle 4 and are separated by an insulatin medium 31. 'The wire 28projects throng ahole in the hub of the reel and wire 2r projectingthroughnnother hole in the hub contacts with the ring 30. A ei'mrterconductor composed of wires 32, 32' being connected with the switch'andmotor", passes through the handle, the wire 32 bein connected with thering 30 and wire 32 wit In addition to driving the brush by means of themotor, I also drive the truck through the medium of the wheels, 15 whichare driven from the armature shaft 20fby ineans of the followingmechanism, The, armature shaft 20 is extended. through one lever' andcarries on its end a small gear 33, which meshes with a larger ear whee,34 mounted on a stub- 34 carries a'small sprocket wheel 36 which isconnected, by means of a sprocket chain 37 the Wheels 15. If desired asprocket 38' may be ounted on one of the wheels Sand vbe" driven inunison with the wheels 15 by means The construction of truck isespecially ad vantageouswhe'n a large quantity of dirt is encountered;and when it is desirable to form the dirt into iles, the brush may bereadily raised from t e ground. and above the piles b either raising orlowering the handle. Vlihen the handle is raised the wheels 8 serve- Thebearings-l2 of the axle 13 form supports for'a'frame'BQ, carryingfenders 4:0 and as this-frame has "stable equilibrium i't-willnot beafie'ctedby the inclination of the, truck 'so'that thefenders willalways remain in the same positionin relation to the ground,

1 The oombinationof the su' iporting levers,-a= brush mounted thereinabove the fulcrum point of each lever and means to operatively supportthe levers in oppositely clined JOSitlOIIS j l 2. -T e combination .of.the'swinging supporting levers; "'a-brush journaled' therein, wheels onthe lower ends o-f the ,evers forming-a fulcrum for raising-and loweringtire apted to serve as a fulcrum for the levers.

3. Thecombi'nation of the su l'ipoi'ting le he :lower endso f'the'levers forming. a fulcrum for raising and lowering the ceases were,wheels mounted on the brush,eross-.piec es niounted'on the levers;

and wheels on each end of the cross pieces adapted'to serve asf'ul'crlinis between. the brush and power ends of the levers.

4. The combination of thesu porting le vers a cylindrica'l bru'slijourna ed therein,

wheels on the'lowe'r ends of the. lovers forming' a fulcrum for raisingand lowering the brush, cross pieces mounted on the levers to limit the'swingthereof, wheels on both ends of the cross pieces, and'means toadjust theygreat mentioned wheels, for, the purpose specie a 5. Thecombination of the supporting 1evers,", a cylindrical bi'hsh journ'aledtherein above the fulcrum point of each lever means connected wit'h theleversto form a meansgand'meansto drive'said wheels; 1

cylin .drica;l brushjournaled in said .bBB,I1I1%S',"

': 6.-- The combination of'th'e snpporting 1evers, a bearing' fixed oneach lever, ,a

wheels-mounted on the lower end of the I, fulcrum on: each side thereofbetween the'brush and :-power ends-of .thelevers, ,j whebls ion saidvers, means to adjust said wheelsonthe levers, "a cross piecegmonntedoneach leverex-- tending beyond the p'erighery of the brush, 'Wheels onthe ends of t means to drive the Wheels. 1

e cross pieces. and

a, 7-, 'lhegeombinatiomoi the su wrangle-1 vers, -a-' cylindia'cal.brush journa e'd therein,

wheels on" this lower ends of the levers. form ing a 'fulcrumfor-raising and "loweringthebrush; wheels-carried by the levers adaptedto serve as fulcrums between the brush and power ends-of the; levers, amotor; means connecting the motor and brush and means connetting-themotor and whee sp v 8. The combination of-the su porting levers,'-a--'cy1indrical brush journa ed therein, wheels on the lower ends of thelevers form? ing a fulcrum for raising and lowering the brush; wheelscarried by the levers extending beyond thesidesof-the brush andadapted/to serve: as--;fulcrums between the brush and power ends of'theaver e-su port between.

the levers, an electric motor mounted on the sup ort'Ia; sprocketcarried by the motor} chain connecting the 'sproekejt-s, 1

sprocket carriedsby the brushyandia g 9. The combination of twosupportingler Q vers, a brusha'n axle fixed therein, bearings fixed onthelevers in which the-axle is flour-q rialed,- wheels adjustably'inounted lathe lower: ends of the -l versserving as-fulerums forraising and lowering the brush, whee'IsIon each side of the leversadapted to-serve as fnl-y crums betweenthe brush and ower'ends'nfgi thelevers, a support mounts between the,

latter, a motor mounted on: the sup o"rt, means connecting the-motor andtime fer ogerating the latter,' and means connecting 1 t e lastmentloned'wheels with them'otor. 1 0 -"The combination of. two sufporting letheiieofla cleaning-device mounted between 'ower ends a I thelovers, and means on. eeeh side .of the le- Vere adopted to serve as afulcrum between the wheel ends and pmver ends of the lovers .1 l. Thecombination of the sup porting levers, a brush joumuled there-in, wheelsmounted on the lower ends of the levers ,fom'ling a fulcrum for raisingand lowering the brush, means to adjust the wheels on the levers tocompensate for Wear of the brush, and means on. each side adapted toserve as e fuleruni between the wheel ends and power ends ofrthe levers.

12. The combination of the shpborting le- Vere, wheels on the lowerGIldSthQIQOf, bearings fixed onthe leversm clea'nmupported by thebearings, 51 support between the levers above the cleaner, a motormounted on the support, means connecting the motor and cleaner foroperatin the latter and means on each side thereof in apted to serve as'a, fulcrum between'the Wheel ends and power ends of the lawns; f;

Intestimony that I claim the foregoing-as my iiivention, I have signedmy'name in p'reseneeqo'f two subscribing Witnesses.

\EMMOB J. STEWART. Witnesses RALPH HOLMES, Mrs. E. J. STEWART.

